1 files changed, 9 insertions, 0 deletions
diff --git a/src/content/style.css b/src/content/style.css
index 1232457..220fb43 100644
--- a/src/content/style.css
+++ b/src/content/style.css
@@ -258,9 +258,18 @@ pre.lineno {
   overflow-x: auto;
 }
 
+/* Collapsed, so the numbers sit flush against the code.  Left
+   separate, the cells stand two pixels apart: pinning the first to
+   the left edge moves it by that much, and the gap it leaves is a
+   strip the code scrolls through in plain view. */
+.listingblock table {
+  border-collapse: collapse;
+}
+
 .listingblock td:first-child {
   position: sticky;
   left: 0;
+  z-index: 1;
   background-color: var(--color-code-bg);
 }